A galaxy located 13.2 billion light years away that existed just 600 million years after the Big Bang is the home of the most distant sites of star birth and stellar death ever seen.
In October of 2021, NASA’s next-generation infrared observatory, the James Webb Space Telescope (JWST), will be launched. As the most advanced and complex space telescope ever built, the James Webb will characterize exoplanets, explore our Solar System, and address the deepest cosmological mysteries of all.
The plant hormone ethylene, in its gaseous state, has long been recognized for its ability to hasten fruit ripening and has a notable impact on shelf-life. In a recent study, scientists used the CRISPR/Cas9 system for gene editing to modify the ethylene production pathway in the luxury Japanese melon (Cucumis melo var. reticulatus “Harukei-3”) to increase its shelf-life.
Their findings were recently published in the journal Frontiers in Genome Editing.
The enzyme 1-aminocyclopropane-1-carboxylic acid.
Fast data transmissions could be delivered in homes and offices through light-emitting diodes (LED) bulbs, complementing existing communication technologies and networks.
The future’s new internet technologies are being rapidly refined by academics and LED-based communication links are expected to be extensively used in numerous emerging services and scenarios, including Light-fidelity (Li-Fi), underwater communications, moderate-to high-speed photonic interconnects and various “Internet of Things” (IoT) devices.
A new study, published in Nature Photonics and led by the University of Surrey and University of Cambridge, has investigated how to release high-speed photonic sources using metal-halide perovskites. These are semiconductors being researched with LEDs for their excellent optoelectronic properties and low-cost processing methods.
A University of Chicago-led team found a computational problem that showed entanglement is responsible for quantum speedups.
Ultrathin optical elements known as meta-optics can reduce the tip length of endoscopes, which is one of the limiting factors of these medical devices. That’s the latest finding from researchers at the University of Washington, who used an inverse design approach to downsize the tip length by a third. They also demonstrate that the endoscope can capture video in real time over the full visible spectrum, something that has proved difficult with previous approaches.
Endoscopy involves inserting a long, flexible tube (consisting of a camera and a light guide) into the body to obtain images of internal tissues. In existing devices, the tube is tipped with a rigid optical component, the length of which is a fundamental limitation to the device being able to travel through small convoluted ducts such as arteries.
In principle, this problem can be solved by making an endoscope from just a single optical fibre or a bundle of fibres, but the snag here is that some of the light travelling down the fibres is scattered by defects and gets distorted beyond recognition. It cannot therefore be reconstructed to obtain an accurate image. Such devices are also limited to short working distances.
Georgia Tech researchers have transformed a standard BBQ lighter into a delivery system that uses an electric spark to boost DNA vaccines — and it could help increase global access to a cheap, powerful new vaccine technology.
mRNA vs. DNA vaccines: DNA vaccines deliver a bit of genetic code that tells cells in the body to make a protein from a specific virus or bacteria. That triggers the immune system to create antibodies against that protein that will protect you if you’re ever infected by that particular pathogen.
This is exactly how mRNA vaccines work, too, and just like mRNA vaccines, DNA-based shots are relatively cheap to produce and easy to change to make new vaccines — but the way mRNA and DNA vaccines get their genetic instructions into cells is different.
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The music you listen to creates specific brain patterns that AI can use to generate that same sound. Here’s how.
